Pemko PK52 Fire-Rated Adhesive...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$62.56
$47.21
Pemko PK52 Fire-Rated Adhesive Perimeter Gasketing with UL10C Certification and GREENGUARD Gold

Pemko PK52 Fire-Rated Adhesive Perimeter Gasketing with UL10C Certification and GREENGUARD Gold

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Model: PK52BL18
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$62.56
$47.21
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Pemko PK52 Fire-Rated Adhesive Perimeter Gasketing with UL10C Certification and GREENGUARD Gold

Professional Fire and Smoke Seal Solution

The Pemko PK52 Adhesive Perimeter Gasketing provides certified fire and smoke protection for commercial door applications. This silicone-based gasketing accommodates door gaps from 1/16"; minimum to 3/8"; maximum, delivering reliable sealing performance with UL10C fire rating and UL1784 smoke testing certification. GREENGUARD Gold Certified for indoor air quality compliance with professional-grade construction.

Professional Features & Benefits

  • Flexible Gap Accommodation: Seals door gaps from 1/16"; minimum to 3/8"; maximum for versatile installation compatibility across various door configurations.
  • Fire and Smoke Certification: UL10C fire rated with positive pressure testing and UL1784 smoke tested for complete code compliance and life safety requirements.
  • Premium Silicone Construction: Self-extinguishing, non-toxic silicone material provides excellent compression and durability for long-term sealing performance.
  • Indoor Air Quality Certified: GREENGUARD Gold Certified ensuring low chemical emissions for healthy indoor environments in occupied spaces.
  • Professional Testing Standards: BHMA certified with air infiltration testing by Intertek Testing (Warnock Hersey) and Underwriters Laboratory 4L10 classification.
  • Easy Installation: Adhesive backing allows quick application to door frames for sealing top and sides of doors without additional fasteners.
  • Manufacturer Warranty: 5 Year warranty coverage for added confidence and protection in commercial applications.

Technical Specifications

  • ANSI/BHMA: Air Infiltration Tested, Intertek Testing (Warnock Hersey), BHMA Certified, Smoke Tested- UL1784, Fire Rated UL10C- Positive Pressure, Underwriters Laboratory 4L10, Greenguard Gold Certified
  • Application: Door Frames to Seal Top and Sides of Door
  • Commercial/Residential: Commercial
  • Department: Door Hardware
  • Features: Excellent Compression, Self-Extinguishing, Non-Toxic
  • Product Category: Door Trim and Accessories
  • Product Dimension: W: 7/16", H: 3/8";
  • Product Group: Door Trim and Accessories
  • Product Model: PK52
  • Product Subgroup: Astragals, Gaskets and Weatherstripping
  • Product Substrate: Silicone
  • Product Type: Gaskets
  • Subcategory: Gaskets & Weatherstripping
  • Warranty: 5 Year

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Pemko Quality?

Pemko gasketing products deliver professional-grade fire and smoke protection with certified UL10C and UL1784 testing standards. GREENGUARD Gold certification and 5 Year warranty coverage demonstrate commitment to both performance and indoor air quality. Engineered for demanding commercial applications where code compliance and reliable sealing performance are essential.

Product Specs

Features:
Excellent Compression, Self-Extinguishing, Non-Toxic
Application:
Door Frames to Seal Top and Sides of Door
Warranty:
5 Year
Product Group:
Door Trim and Accessories
Product Subgroup:
Astragals, Gaskets and Weatherstripping
Product Type:
Gaskets
Subcategory:
Gaskets & Weatherstripping
ANSI/BHMA:
Air Infiltration Tested, Intertek Testing (Warnock Hersey), BHMA Certified, Smoke Tested- UL1784, Fire Rated UL10C- Positive Pressure, Underwriters Laboratory 4L10, Greenguard Gold Certified
Commercial/Residential:
Commercial
Product Model:
PK52
Product Dimension:
W: 7/16", H: 3/8"
Product Category:
Door Trim and Accessories
Product Substrate:
Silicone
Department:
Door Hardware

Pemko PK52BL18 – Frequently Asked Questions

1) What size door gap will the Pemko PK52 gasketing seal?
The PK52 silicone perimeter gasketing takes up gaps from 1/16 inch minimum to 3/8 inch maximum. If your door-to-frame gap is tighter than 1/16 inch the seal has nothing to compress against, and anything wider than 3/8 inch is past what this profile bridges. Measure at the head and both jambs, since gaps often run wider at the top of a settled opening than at the hinge jamb.
2) Is Pemko PK52 gasketing approved for use on a fire-rated door?
Fire rated to UL10C under positive pressure, and smoke tested to UL1784. It also carries the Underwriters Laboratory 4L10 classification and is BHMA certified, with air infiltration testing by Intertek (Warnock Hersey). That combination is what an inspector looks for on a rated opening that also has to hold smoke.
3) Does the PK52 gasketing go on the door or on the frame?
It mounts to the frame, sealing the top and sides of the door. The adhesive back means no drilling and no fastener holes in the stop, which is why it goes on quickly for a retrofit on an occupied opening. Note it covers head and jambs only, so the bottom of the door is a separate part.
4) What length of PK52 gasketing do I need for a standard door opening?
PK52 comes in 18, 20, 21, 25 and 300 inch lengths, in black or white silicone. The short pieces suit a single jamb leg or a head; for a full perimeter on a standard opening most people order the 300 inch coil and cut head and jambs from one roll, which keeps the color batch consistent across the opening. For a fleet of doors the 300 inch length is the one to standardize on.
5) How much space does the PK52 gasket take up on the door stop?
The profile measures W: 7/16 inch, H: 3/8 inch. Check the flat face of your stop against that 7/16 inch width before ordering, since a narrow stop or one already carrying a smoke seal groove will not give the adhesive full contact, and partial contact is where these let go first.
6) Can Pemko PK52 gasketing be used in a hospital or school where indoor air quality is specified?
It is GREENGUARD Gold Certified for low chemical emissions, which is the certification typically called out for schools and healthcare where people occupy the space full time. The silicone is also non-toxic and self-extinguishing. Combined with the UL10C fire rating, it covers both the life safety line and the IAQ line on an institutional spec.
7) Is adhesive-backed silicone gasketing the right choice, or should I use a kerf-mounted seal?
Adhesive perimeter gasketing like the PK52 is for frames with no kerf cut in the stop, and for retrofits where you cannot pull the door or machine the frame. It sticks to the face of the stop and needs no fasteners. If your hollow metal frame already has a kerf slot, a kerf-in seal is the better fit there because it is mechanically held and swaps out without cleaning old adhesive. Silicone rather than vinyl matters if the opening is rated or sees temperature swings.
8) Will the PK52 gasket hold a seal on a door that gets heavy daily traffic?
The silicone is specified for excellent compression, which is the property that matters on a high-cycle opening: it has to recover its shape every time the door swings clear rather than take a set and leave a light gap. Silicone also holds up better than vinyl through temperature swings on an exterior or stairwell door.
9) Black or white silicone gasketing, which should I order?
Both PK52 colors are the same silicone with the same UL10C and UL1784 testing, so it is purely an appearance call against the frame. Black disappears against dark bronze and painted dark frames; white matches painted white or light aluminum jambs. Every length offered comes in both.
10) Is Pemko PK52 gasketing meant for commercial doors or will it work on a house?
It is a commercial-grade product, built for hollow metal and rated openings in offices, schools, healthcare, retail, warehouses, multi-tenant residential and government buildings. Nothing stops it working on a residential door, but the UL10C fire rating and BHMA certification are what you are paying for, and a house door rarely needs either.
11) Does PK52 gasketing help with drafts and air leakage, not just fire?
It is air infiltration tested by Intertek Testing (Warnock Hersey), so the seal is rated for stopping air movement around the perimeter as well as smoke under UL1784. On an exterior or corridor door that translates into fewer drafts and less pressure-driven noise transfer, with the same part that satisfies the rated-opening requirement.
How fast can I get the Pemko PK52BL18 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Pemko PK52BL18 come with a warranty?
Absolutely. The Pemko PK52BL18 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Pemko PK52BL18?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Pemko PK52BL18 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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